Mixing impeller



FIG. 1 is a top perspective view of a mixing impeller showing an embodiment of our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top perspective view of a mixing impeller showing another embodiment of our new design;

FIG. 8 is a bottom perspective view thereof;

FIG. 9 is a front view thereof;

FIG. 10 is a top view thereof; and,

FIG. 11 is a bottom view thereof.

The broken lines are for environmental purposes only and form no part of the claimed design.

The mixing impeller of the embodiment of FIGS. 1-6 is rotationally symmetrical at 120° intervals around a central vertical axis thereof.

The mixing impeller of the embodiment of FIGS. 7-11 is being rotationally symmetrical at 90° intervals around a central vertical axis thereof, such that the right side, left side and rear views are substantially identical to the front view of FIG. 9. 

CLAIM The ornamental design for mixing impeller, as shown and described. 